Seattle Tech Talk Blog

Attacks on operating systems may be decreasing since last year, but attacks on applications, incidents of malware, and unwanted software are rising and account for 90 percent of vulnerabilities, according to the Microsoft Security Intelligence Report, released Saturday.

The amount of malware and unwanted software removed from computers increased 43 percent in the first half of the year, according to the 150-page report, now in its fifth installment. Thirty percent of that malware was Trojan-based, usually in the form of a computer worm or virus disguised as another application that erases data, corrupts files, and reinstalls itself after being disabled.

China had the highest percentage of browser-based attacks at 50 percent, with the United States following with 23 percent. China’s infection rate of 6.6 percent, a 41 percent increase from the second half of 2007, was a bit lower than industry experts expected…

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